[forwardport] test: fix content-disposition header assertion tests

[nabim777]

Description

This PR forwardports release/2.11 PR #1013

Related Issue or Workpackage

• Fixes <issue_link>

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Updated CHANGELOG.md file

[github-actions]

JS Code Coverage

Coverage after merging backport-php-unit-tests-fix into master will be

92.47%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
adminSettings.js	0%	0%	0%	0%	1, 1, 10–19, 2–9
bootstrap.js	0%	0%	0%	0%	1, 1, 10–12, 2–9
dashboard.js	0%	0%	0%	0%	1, 1, 10–19, 2–9
personalSettings.js	0%	0%	0%	0%	1, 1, 10–19, 2–9
projectTab.js	0%	0%	0%	0%	1, 1, 10–19, 2, 20–29, 3, 30–37, 4–9
reference.js	0%	0%	0%	0%	1, 1, 10–19, 2, 20–29, 3, 30–39, 4, 40–45, 5–9
utils.js	85.92%	33.33%	50%	87.59%	12–20, 23–32
src/api
endpoints.js	100%	100%	100%	100%
settings.js	64.71%	100%	0%	73.33%	10–11, 14–15
src/components
AdminSettings.vue	96.06%	94.74%	97.10%	96.19%	1003–1005, 1025–1028, 568, 568–569, 569, 606–612, 715–716, 720–721, 724–725, 729–730, 740–745, 788–790, 802–805, 818–820, 842–844, 927–929, 964–967
ErrorLabel.vue	100%	100%	100%	100%
OAuthConnectButton.vue	91.85%	75%	100%	93.28%	64–69, 72–76
PersonalSettings.vue	92.02%	95.65%	90%	91.71%	133–134, 144–149, 152–161
src/components/admin
FieldValue.vue	100%	100%	100%	100%
FormAuthMethod.vue	98.12%	96.88%	100%	98.12%	222–224, 247–250
FormHeading.vue	100%	100%	100%	100%
FormOpenProjectHost.vue	98.87%	94.74%	100%	99.34%	167–169, 279
FormSSOSettings.vue	98.57%	97.18%	96.55%	98.91%	231–233, 242–243, 358–359
TermsOfServiceUnsigned.vue	100%	100%	100%	100%
TextInput.vue	100%	100%	100%	100%
src/components/icons
ClippyIcon.vue	100%	100%	100%	100%
OpenProjectIcon.vue	100%	100%	100%	100%
src/components/settings
CheckBox.vue	100%	100%	100%	100%
ErrorNote.vue	100%	100%	100%	100%
SettingsTitle.vue	94.74%	80%	100%	95.35%	49–53
src/components/tab
EmptyContent.vue	98.99%	95.65%	100%	99.41%	107–108
SearchInput.vue	95.31%	92.96%	94.74%	95.78%	138–139, 192, 203–208, 267–269, 285–287, 291–296
WorkPackage.vue	86.25%	73.17%	93.33%	87.62%	107–116, 129–131, 142–146, 156–158, 176–182, 220, 220–225, 225, 225–236, 81–82
src/constants
appID.js	100%	100%	100%	100%
links.js	100%	100%	100%	100%
messages.js	100%	100%	100%	100%
src/filesPlugin
filesPlugin.js	0%	0%	0%	0%	1, 1, 10, 100–109, 11, 110–113, 12–19, 2, 20–29, 3, 30–39, 4, 40–49, 5, 50–59, 6, 60–69, 7, 70–79, 8, 80–89, 9, 90–99
src/utils
workpackageHelper.js	93.80%	93.10%	88.89%	94.24%	100–102, 23–27, 54, 54–56, 97–99
src/views
CreateWorkPackageModal.vue	94.18%	86.32%	90.48%	95.43%	367–372, 375, 391, 508–511, 516–521, 526–531, 537–540, 543, 559, 559, 600–604, 614–616, 639–640, 648–650, 679–681, 703–705, 714–718
Dashboard.vue	92.96%	92.86%	82.61%	93.77%	120–125, 134, 144, 147, 158–160, 214–217, 220–221, 228–232, 67
LinkMultipleFilesModal.vue	99.14%	97.56%	100%	99.32%	157–159
ProjectsTab.vue	94.95%	94.34%	93.75%	95.10%	104–107, 143, 154–155, 189–199, 248–250